Metric single-row tapered roller bearings
31340 Tapered Roller Bearing Dimensions & Specifications
31340 tapered roller bearing: 200 mm bore (d), 420 mm outside diameter (D), 107 mm overall width (T). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 200 mm |
|---|---|
| Outside diameter D | 420 mm |
| Overall width T | 107 mm |
| Inner-ring width B | 97 mm |
| Outer-ring width C | 70 mm |
| Mass | 65.1 kg |
| Catalogue dynamic load Cr | 1320 kN |
| Catalogue static load Cor | 1900 kN |
Mounting dimensions & additional parameters (12)
| Abutment dimension Da Da | 372 mm |
|---|---|
| Abutment dimension Db Db | 391 mm |
| Abutment dimension da da | 251 mm |
| Abutment dimension db db | 229 mm |
| Minimum chamfer r12 r12 | 5 mm |
| Minimum chamfer r34 r34 | 4 mm |
| Factor Y Y | 0.8 |
| Factor Y0 Y0 | 0.4 |
| Factor e e | 0.79 |
| Maximum fillet ra ra | 5 mm |
| Maximum fillet rb rb | 4 mm |
| Load centre dimension a a | 130 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which width should I use when checking 31340?
For 31340, the complete bearing width T is 107 mm; the inner-ring width B is 97 mm. The outer-ring width C is 70 mm. Check T against the assembly drawing; the separate ring widths describe different parts.
Which mounting dimensions are listed for 31340?
The 31340 catalogue lists da = 251 mm; Da = 372 mm; ra ≤ 5 mm. Check these symbols against the bearing drawing and the shaft/housing shoulders; they are not shaft or housing fit tolerances.
What is the reference mass of 31340?
The catalogue reference mass for 31340 is 65.1 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.